EP0185254A1 - Process for prolonging the dormancy of plants or parts of plants - Google Patents

Process for prolonging the dormancy of plants or parts of plants Download PDF

Info

Publication number
EP0185254A1
EP0185254A1 EP19850115409 EP85115409A EP0185254A1 EP 0185254 A1 EP0185254 A1 EP 0185254A1 EP 19850115409 EP19850115409 EP 19850115409 EP 85115409 A EP85115409 A EP 85115409A EP 0185254 A1 EP0185254 A1 EP 0185254A1
Authority
EP
European Patent Office
Prior art keywords
plants
dormancy
parts
cyanamide solution
expected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19850115409
Other languages
German (de)
French (fr)
Other versions
EP0185254B1 (en
Inventor
Georg Leonhard Dr. Rieder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
SKW Trostberg AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SKW Trostberg AG filed Critical SKW Trostberg AG
Priority to AT85115409T priority Critical patent/ATE64063T1/en
Publication of EP0185254A1 publication Critical patent/EP0185254A1/en
Application granted granted Critical
Publication of EP0185254B1 publication Critical patent/EP0185254B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/24—Cyanogen or compounds thereof, e.g. hydrogen cyanide, cyanic acid, cyanamide, thiocyanic acid

Definitions

  • the subject of the present application is a method for lengthening the dormant of plants or parts of plants and a safe and problem-free method for preventing late frost damage in plants.
  • endogenous growth factors are related to external d. H. exogenous growth factors such as B. light, temperature, air, water and
  • Actively growing plants are sensitive to unfavorable external growth factors such as B. Frost, heat or insufficient water supply.
  • the plant protects itself from such fatal external conditions by the fact that the parts of the plant necessary for the survival of the plant, such as. B. seeds, rhizomes, tubers or buds in a state of rest, the so-called dormancy.
  • the plant shows no externally visible growth, i.e. H. no sensitive plant parts are formed, which can be damaged by the unfavorable external conditions.
  • the beginning and end and thus the duration of the dormancy period are essentially determined by environmental factors such as B. controlled light and temperature.
  • the invention is therefore based on the object of developing a method for prolonging the dormancy of plants or parts of plants which does not have the disadvantages of the prior art mentioned, but instead enables an effective prolongation of the dormancy phase despite uncomplicated handling.
  • the cyanamide solution is sprayed onto the plants or plant parts to be treated, such as e.g. B. buds, rhizomes, bulbs, onions, rhizomes applied.
  • the optimal treatment date is about 4 weeks to immediately, ie about 1 day before the expected budding, whereby the time of the treatment has a decisive influence on the prolongation of the dormancy.
  • the later the treatment takes place ie the shorter the time period between treatment and expected shoot-out, the longer the delay in the shoot-out.
  • the dormancy can be extended up to 14 days.
  • the aqueous cyanamide solution expediently has a concentration of about 0.05 to about 10% by weight, preferably of about 1 to about 3% by weight.
  • the cyanamide solution can be applied with the usual spraying equipment and thus has the advantage of a problem-free and easy to dose application.
  • the amount of the cyanamide solution used is preferably such that complete wetting of the plants or parts of plants to be treated occurs. If necessary, wetting agents, in particular alkylaryl polyglycol ethers such as. B. "Citowett" R can be added, which are advantageously used in an amount of about 0.1 to about 1 wt .-%, based on the cyanamide solution.
  • the method according to the invention is suitable in principle for treating all plants, in particular fruit trees and grapevines.
  • the "Novling" grape variety is known in the southern Baden wine-growing region for poor budding. In addition, late frosts often occur there, which can lead to considerable damage after sprouting. After practical experience, the shoot was expected around May 10 in the trial year.
  • the cyanamide solution according to the invention was sprayed in a concentration of 2.5% by weight on April 24, that is only 15 days before the expected expulsion. The delay in sprouting was about 10 days, as can be seen from Table 1.
  • the Aconcagua Valley in South America is a relatively new wine-growing region. At the time of normal bud budding there are relatively strongly fluctuating day / night temperatures. While the midday temperature can rise to over 20 ° C, it is possible that temperatures in the area of freezing point occur during the night.

Abstract

To prolong the dormancy of plants or parts of plants, the plants or parts of plants in question are treated with an aqueous cyanamide solution before the point in time when they are expected to germinate. This allows the prolonging of the dormancy phase to be controlled in a targeted manner, simple handling and high rentability.

Description

Gegenstand der vorliegenden Anmeldung ist ein Verfahren zur Verlängerung der Dormans von Pflanzen oder Pflanzenteilen sowie eine sichere und problemlose Methode zur Verhinderung von Spätfrostachäden bei Pflanzen.The subject of the present application is a method for lengthening the dormant of plants or parts of plants and a safe and problem-free method for preventing late frost damage in plants.

Die Entwicklung von Pflanzen läuft bekanntermaßen in verschiedenen, deutlich voneinander abgrenzbaren Abschnitten ab, wie z. B. das Keimen von Samen, das Austreiben von mehrjährigen Pflanzen, die Bildung von Blättern und Blüten oder die Bildung von Früchten und Samen. Dieser Entwicklungsablauf ist genetisch festgelegt und wird somit von inneren, sogenannten endogenen Wachstumsfaktoren beeinflußt.As is known, the development of plants takes place in different, clearly distinguishable sections, such as B. the germination of seeds, the sprouting of perennial plants, the formation of leaves and flowers or the formation of fruits and seeds. This development process is genetically determined and is therefore influenced by internal, so-called endogenous growth factors.

Diese endogenen Wachstumsfaktoren stehen aber in Wechselbeziehung zu äußeren d. h. exogenen Wachstumsfaktoren wie z. B. Licht, Temperatur, Luft, Wasser undHowever, these endogenous growth factors are related to external d. H. exogenous growth factors such as B. light, temperature, air, water and

Aktiv wachsende Pflanzen sind gegenüber ungünstigen äußeren Wachstumsfaktoren wie z. B. Frost, Hitze oder zu geringem Wasserangebot wenig widerstandsfähig. Zur Erhaltung der Art schützt sich die Pflanze vor solchen für sie fatalen äußeren Bedingungen dadurch, daß die für das überleben der Pflanze notwendigen Pflanzenteile wie z. B. Samen, Wurzelstöcke, Rhizome, Knollen oder Knospen in einen Ruhezustand, die sogenannte Dormanz übergehen. In diesem Stadium der Dormanz zeigt die Pflanze kein äußerlich sichtbares Wachstum, d. h. es werden keine empfindlichen Pflanzenteile gebildet, welche durch die ungünstigen äußeren Bedingungen geschädigt werden können.Actively growing plants are sensitive to unfavorable external growth factors such as B. Frost, heat or insufficient water supply. To preserve the species, the plant protects itself from such fatal external conditions by the fact that the parts of the plant necessary for the survival of the plant, such as. B. seeds, rhizomes, tubers or buds in a state of rest, the so-called dormancy. At this stage of dormancy, the plant shows no externally visible growth, i.e. H. no sensitive plant parts are formed, which can be damaged by the unfavorable external conditions.

Anfang und Ende und somit die Dauer der Dormanzperiode werden im wesentlichen durch Umweltfaktoren wie z. B. Licht und Temperatur gesteuert.The beginning and end and thus the duration of the dormancy period are essentially determined by environmental factors such as B. controlled light and temperature.

Die Verlängerung der Dormanz bietet für den praktischen Pflanzenanbau, insbesondere den Obst- und Weinanbau, entscheidende Vorteile. Diese Vorteile sind besonders unter solchen Klimabedingungen von Bedeutung, bei denen nach Beginn des aktiven Wachstums noch mit Frösten zu rechnen ist. Diese Spätfröste, die nicht regelmäßig und jedes Jahr gleich stark auftreten, schädigen bereits ausgetriebene Obstgehölze oder Rebstöcke, was immer mit beträchtlichen Ernteertragsausfällen verbunden ist.The extension of the dormancy offers decisive advantages for practical plant cultivation, especially fruit and wine growing. These advantages are particularly important in climatic conditions where frost can still be expected after active growth begins. These late frosts, which do not occur regularly and with the same intensity each year, damage fruit trees or vines that have already been driven out, which is always associated with considerable crop loss.

Es hat nicht an Versuchen gefehlt, diese Spätfrostschäden zu verhindern (vgl. hierzu R. I. Weaver: Grape Growing, Seite 47 bis 55 Verlag John Wiley & Sons, New York, 1976). Zu diesen Methoden zum Stand der Technik gehören die sogenannte "Frostberegnung", die Beeinflussung von Kaltluftschichten durch Windgebläse oder die direkte Beheizung der Obstanlagen. Alle diese Maßnahmen, die auf den Schutz bereits ausgetriebener Knospen und Blätter abzielen, sind entweder nur bedingt wirksam oder wegen der hohen Energiekosten unwirtschaftlich.There has been no lack of attempts to prevent this late frost damage (cf. R. I. Weaver: Grape Growing, pages 47 to 55, publisher John Wiley & Sons, New York, 1976). These prior art methods include so-called "frost irrigation", the influence of cold air layers by wind blowers or the direct heating of the orchards. All of these measures, which are aimed at protecting buds and leaves that have already sprouted, are either only of limited effectiveness or uneconomical because of the high energy costs.

Es ist deshalb versucht worden, die Spätfrontsehäden durch Verlängerung der unempfindlichen Dormanzphase mit Hilfe von Pflanzenhormonen zu verhindern (vgl. R. I. Weaver: Plant Growth Substances in Agriculture, Seite 166-167 Verlag W.H. Freemanh & Co., 1972). So wurden beispielsweise Versuche mit natürlichen Pflanzenhormonen wie Gibberellin oder Abszisin oder synthetischen Wachstumsinhibitoren wie Chlorcholinchlorid durchgeführt, die jedoch bisher nicht zum gewünschten Erfolg führten.Attempts have therefore been made to prevent late frontal damage by prolonging the insensitive dormancy phase with the help of plant hormones (cf. R.I. Weaver: Plant Growth Substances in Agriculture, page 166-167, publisher W.H. Freemanh & Co., 1972). For example, tests with natural plant hormones such as gibberellin or abscisin or synthetic growth inhibitors such as chlorcholine chloride have been carried out, but have so far not been successful.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zur Verlängerung der Dormanz von Pflanzen oder Pflanzenteilen zu entwickeln, welches die genannten Nachteile des Standes der Technik nicht aufweist, sondern trotz unkomplizierter Handhabung eine wirkungsvolle Verlängerung der Dormanzphase ermöglicht.The invention is therefore based on the object of developing a method for prolonging the dormancy of plants or parts of plants which does not have the disadvantages of the prior art mentioned, but instead enables an effective prolongation of the dormancy phase despite uncomplicated handling.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß man die entsprechenden Pflanzen oder Pflanzenteile vor dem voraussichtlichen Austrieb mit einer wäßrigen Cyanamidlösung behandelt. Es hat sich nämlich überraschenderweise gezeigt, daß durch das erfindungsgemäße Verfahren eine beträchtliche Verlängerung der Dormanzphase möglich ist. Dies war deshalb so überraschend, weil nach dem Stand der Technik gemäß der DE-OS 31 50 404 die Cyanamidlösung genau die gegenteilige Wirkung hat, nämlich die Brechung der Knospendormanz. Dies ist nur damit zu erklären, daß es auf den Zeitpunkt der Behandlung ankommt.This object is achieved according to the invention by treating the corresponding plants or parts of plants with an aqueous cyanamide solution before they are expected to sprout. Surprisingly, it has been shown that the process according to the invention enables the dormancy phase to be lengthened considerably. This was so surprising because, according to the prior art according to DE-OS 31 50 404, the cyanamide solution has exactly the opposite effect, namely the breaking of the bud form. This can only be explained by the fact that the timing of the treatment is important.

Beim Verfahren gemäß der vorliegenden Erfindung wird die Cyanamidlösung vor dem voraussichtlichen Austrieb auf die zu behandelnden Pflanzen oder Pflanzenteile wie z. B. Knospen, Rhizome, Knollen, Zwiebeln, Wurzelstöcke aufgebracht. Der optimale Behandlungstermin liegt etwa 4 Wochen bis unmittelbar, d. h. etwa 1 Tag vor dem voraussichtlichen Austrieb, wobei der Zeitpunkt der Behandlung entscheidenden Einfluß auf die Verlängerung der Dormanz hat. Je später die Behandlung erfolgt, d. h. je kürzer die Zeitspanne zwischen Behandlung und voraussichtlichem Austrieb ist, umso länger ist die Verzögerung des Austriebs. Im günstigsten Fall kann die Verlängerung der Dormanz bis zu 14 Tagen betragen. Man hat es mit Hilfe des erfindungsgemäßen Verfahrens also nicht nur in der Hand, die Dormanz generell zu verlängern, sondern man kann auch die Zeitdauer der Verlängerung durch den Behandlungszeitpunkt gezielt steuern.In the method according to the present invention, the cyanamide solution is sprayed onto the plants or plant parts to be treated, such as e.g. B. buds, rhizomes, bulbs, onions, rhizomes applied. The optimal treatment date is about 4 weeks to immediately, ie about 1 day before the expected budding, whereby the time of the treatment has a decisive influence on the prolongation of the dormancy. The later the treatment takes place, ie the shorter the time period between treatment and expected shoot-out, the longer the delay in the shoot-out. In the best case, the dormancy can be extended up to 14 days. Man With the aid of the method according to the invention, it is therefore not only in hand to generally prolong the dormancy, but one can also control the length of time of the prolongation by the time of treatment.

Die wäßrige Cyanamidlösung weist zweckmäßig eine Konzentration von etwa 0,05 bis etwa 10 Gew.-%, vorzugsweise von etwa 1 bis etwa 3 Gew.-% auf. Die Cyanamidlösung kann mit den üblichen Spritzgeräten ausgebracht werden und besitzt somit den Vorteil einer problemlosen und gut dosierbaren Ausbringung.The aqueous cyanamide solution expediently has a concentration of about 0.05 to about 10% by weight, preferably of about 1 to about 3% by weight. The cyanamide solution can be applied with the usual spraying equipment and thus has the advantage of a problem-free and easy to dose application.

Die Menge der eingesetzten Cyanamidlösung wird vorzugsweise so bemessen, daß eine vollständige Benetzung der zu behandelnden Pflanzen oder Pflanzenteile eintritt. Gegebenenfalls können noch Netzmittel, insbesondere Alkylarylpolyglycolether wie z. B. "Citowett" R zugesetzt werden, die zweckmäßig in einer Menge von etwa 0,1 bis etwa 1 Gew.-%, bezogen auf die Cyanamidlösung, verwendet werden.The amount of the cyanamide solution used is preferably such that complete wetting of the plants or parts of plants to be treated occurs. If necessary, wetting agents, in particular alkylaryl polyglycol ethers such as. B. "Citowett" R can be added, which are advantageously used in an amount of about 0.1 to about 1 wt .-%, based on the cyanamide solution.

Das erfindungsgemäße Verfahren ist prinzipiell zur Behandlung aller Pflanzen, insbesondere von Obstbäumen und Weinreben geeignet.The method according to the invention is suitable in principle for treating all plants, in particular fruit trees and grapevines.

Die wesentlichen Vorteile dieses Verfahrens sind die gezielte Steuerung der Verlängerung der Dormanzphase, einfache Handhabung und hohe Wirtschaftlichkeit, da Cyanamid eine wohlfeile Chemikalie darstellt. Diese Vorteile sind die wesentliche Voraussetzung für eine sichere und wirtschaftliche Methode, Ernteausfälle durch Spätfröste zu verhindern bzw. weitgehend zu vermeiden.The main advantages of this process are the targeted control of the prolongation of the dormancy phase, simple handling and high cost-effectiveness, since cyanamide is a cheap chemical. These advantages are the essential prerequisite for a safe and economical method of preventing or largely avoiding crop failures due to late frosts.

Die nachfolgenden Beispiele sollen die Erfindung näher erläutern, ohne sie jedoch darauf zu beschränken.The following examples are intended to explain the invention in more detail, but without restricting it thereto.

B e i s p i e 1 1Example: 1 1

Die Rebsorte "Novling" ist im südbadischen Weinanbaugebiet für schlechten Austrieb bekannt. Außerdem treten dort häufig Spätfröste auf, die nach Austrieb zu beträchtlichen Schäden führen können. Nach praktischen Erfahrungen wurde der Austrieb im Versuchsjahr etwa um den 10. Mai erwartet. Die erfindungsgemäße Cyanamidlösung wurde in einer Konzentration von 2,5 Gew.-% am 24. April, also nur 15 Tage vor dem erwarteten Austrieb gespritzt. Die Verspätung des Austriebes betrug etwa 10 Tage, wie aus Tabelle 1 zu ersehen ist.

Figure imgb0001
The "Novling" grape variety is known in the southern Baden wine-growing region for poor budding. In addition, late frosts often occur there, which can lead to considerable damage after sprouting. After practical experience, the shoot was expected around May 10 in the trial year. The cyanamide solution according to the invention was sprayed in a concentration of 2.5% by weight on April 24, that is only 15 days before the expected expulsion. The delay in sprouting was about 10 days, as can be seen from Table 1.
Figure imgb0001

B e i s p i e 1 2Example: 1 2

Das Aconcagua Tal in Südamerika ist ein relativ neues Weinanbaugebiet. Zur Zeit des normalen Knospenaustriebes gibt es relativ stark schwankende Tag/Nacht Temperaturen. Während die Mittagstemperatur bis auf über 20°C ansteigen kann, ist es möglich, daß während der Nacht Temperaturen im Bereich des Gefrierpunktes auftreten.The Aconcagua Valley in South America is a relatively new wine-growing region. At the time of normal bud budding there are relatively strongly fluctuating day / night temperatures. While the midday temperature can rise to over 20 ° C, it is possible that temperatures in the area of freezing point occur during the night.

Mit der dort wichtigsten Traubensorte Thompson Seedless wurden Versuche zur Verlängerung der Dormanzperiode angelegt. Eine wäßrige Lösung des Wirkstoffes Cyanamid in einer Konzentration von 2,5 Gew.-% wurde zu mehreren Terminen gespritzt. Der nach Praxiserfahrungen erwartete normale Austrieb sollte am 28. August stattfinden. Demzufolge wurden die Behandlungstermine mit 15 bis 0 Tage vor dem erwarteten Austrieb festgelegt und entsprechend wahrgenommen. Tatsächlich wurden die ersten Anzeichen des Knospenaustriebes, d. h. Schwellen der Knospen und Sichtbarwerden der Haare der ersten Blätter (Baumwollstadium, bzw. "cotton stage") bereits am 28. August beobachtet. Das bedeutet, daß beim spätesten Anwendungstermin der Wirkstoff Cyanamid unmittelbar am Ende der-Dormanzperiode gespritzt wurde. Wie aus der Tabelle 2 zu ersehen ist, führte die späte Anwendung zu einer 10-tägigen Verlängerung der Dormanz.

Figure imgb0002
With the most important grape variety Thompson Seedless, attempts were made to extend the dormancy period. An aqueous solution of the active ingredient cyanamide in a concentration of 2.5% by weight was injected at several times. The normal budding expected from practical experience should take place on August 28th. As a result, the treatment dates were set 15 to 0 days before the expected sprouting and perceived accordingly. In fact, the first signs of bud budding, ie swelling of the buds and the appearance of the hair of the first leaves (cotton stage) were observed on August 28th. This means that at the latest application date, the active ingredient cyanamide was injected immediately at the end of the dormancy period. As can be seen from Table 2, the late application resulted in a 10-day prolongation of the dormancy.
Figure imgb0002

Claims (7)

1. Verfahren zur Verlängerung der Dormanz von Pflanzen oder Pflanzenteilen, dadurch gekennzeichnet , daß man die entsprechenden Pflanzen oder Pflanzenteile vor dem voraussichtlichen Austrieb mit einer wäßrigen Cyanamidlösung behandelt.1. A method for prolonging the dormancy of plants or parts of plants, characterized in that the corresponding plants or parts of plants are treated with an aqueous cyanamide solution before the expected budding. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet , daß man die Behandlung vier Wochen bis unmittelbar vor dem voraussichtlichen Austrieb vornimmt.2. The method according to claim 1, characterized in that one carries out the treatment four weeks to immediately before the expected budding. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet , daß man eine Cyanamidlösung mit einer Konzentration von 0,05 bis 10 Gew.-% verwendet.3. The method according to claim 1 or 2, characterized in that one uses a cyanamide solution with a concentration of 0.05 to 10 wt .-%. 4. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet , daß man eine Cyanamidlösung mit einer Konzentration von 1 bis 3 Gew.-% verwendet.4. Process according to claims 1 to 3, characterized in that a cyanamide solution is used with a concentration of 1 to 3 wt .-%. 5. Verfahren nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet , daß man die zu behandelnden Pflanzen bzw. Pflanzenteile mit der Cyanamidlösung vollständig benetzt.5. Process according to claims 1 to 4, characterized in that the plants or plant parts to be treated are completely wetted with the cyanamide solution. 6. Verfahren nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet , daß man eine Cyanamidlösung verwendet, die ein Netzmittel in einer Menge von 0,1 bis 1 Gew.-% enthält.6. Process according to claims 1 to 5, characterized in that a cyanamide solution is used which contains a wetting agent in an amount of 0.1 to 1 wt .-%. 7. Verwendung einer 0,1 bis 10 Gew.-%igen Cyanamidlösung als Mittel zur Verlängerung der Dormanz von Pflanzen und Pflanzenteilen.7. Use of a 0.1 to 10% by weight cyanamide solution as an agent for extending the dormancy of plants and parts of plants.
EP85115409A 1984-12-04 1985-12-04 Process for prolonging the dormancy of plants or parts of plants Expired - Lifetime EP0185254B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85115409T ATE64063T1 (en) 1984-12-04 1985-12-04 METHOD OF PROLONGING THE DORMANCE OF PLANTS OR PARTS OF PLANTS.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19843444211 DE3444211A1 (en) 1984-12-04 1984-12-04 METHOD FOR EXTENDING THE DORMACE OF PLANTS OR PLANT PARTS
DE3444211 1984-12-04
BR8602531A BR8602531A (en) 1984-12-04 1986-06-02 PROCESS TO EXTEND THE DORMANCE OF PLANTS OR PARTS OF PLANTS AND EMPLOYMENT

Publications (2)

Publication Number Publication Date
EP0185254A1 true EP0185254A1 (en) 1986-06-25
EP0185254B1 EP0185254B1 (en) 1991-06-05

Family

ID=25664119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115409A Expired - Lifetime EP0185254B1 (en) 1984-12-04 1985-12-04 Process for prolonging the dormancy of plants or parts of plants

Country Status (7)

Country Link
US (1) US5043010A (en)
EP (1) EP0185254B1 (en)
JP (1) JPS61134304A (en)
AU (1) AU589167B2 (en)
BR (1) BR8602531A (en)
CA (1) CA1272388A (en)
DE (1) DE3444211A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014003082A1 (en) 2014-03-01 2015-09-17 Alzchem Ag Emulsifiable or self-emulsifying composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5943672B2 (en) * 2012-03-28 2016-07-05 クラレノリタケデンタル株式会社 Dental composite inorganic filler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368601A (en) * 1943-12-13 1945-01-30 American Cyanamid Co Defoliating growing plants
DE1642343A1 (en) * 1967-10-18 1971-05-06 Sueddeutsche Kalkstickstoff Method for killing the secondary shoots of hop plants
DE2737454A1 (en) * 1977-08-19 1979-03-01 Sueddeutsche Kalkstickstoff MEANS TO INFLUENCE PLANT GROWTH IN VINEYARD
DE3150404A1 (en) * 1981-12-19 1983-06-30 Skw Trostberg Ag, 8223 Trostberg MEANS OF BREAKING THE BULB ORMAN

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU536475B1 (en) * 1983-04-05 1984-05-10 Degussa A.G. Aqueous cyanamide to control bud dormancy
US4487685A (en) * 1983-06-24 1984-12-11 Kashima Oil Company Limited Method for producing mesophase-containing pitch by using carrier gas

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368601A (en) * 1943-12-13 1945-01-30 American Cyanamid Co Defoliating growing plants
DE1642343A1 (en) * 1967-10-18 1971-05-06 Sueddeutsche Kalkstickstoff Method for killing the secondary shoots of hop plants
DE2737454A1 (en) * 1977-08-19 1979-03-01 Sueddeutsche Kalkstickstoff MEANS TO INFLUENCE PLANT GROWTH IN VINEYARD
DE3150404A1 (en) * 1981-12-19 1983-06-30 Skw Trostberg Ag, 8223 Trostberg MEANS OF BREAKING THE BULB ORMAN

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014003082A1 (en) 2014-03-01 2015-09-17 Alzchem Ag Emulsifiable or self-emulsifying composition

Also Published As

Publication number Publication date
US5043010A (en) 1991-08-27
DE3444211A1 (en) 1986-06-05
BR8602531A (en) 1988-02-02
EP0185254B1 (en) 1991-06-05
CA1272388A (en) 1990-08-07
AU5568786A (en) 1987-10-08
JPS61134304A (en) 1986-06-21
JPS6357401B2 (en) 1988-11-11
AU589167B2 (en) 1989-10-05

Similar Documents

Publication Publication Date Title
DE716342C (en) Promotion of plant growth
DE1642239A1 (en) Process for promoting the growth of crops
CN105594535A (en) Pear pest and disease prevention and control method
DE3150404C2 (en) Use of an aqueous cyanamide solution as an agent for breaking bud dormancy
Erez et al. The effect of limitation in light during the rest period on leaf bud break of the peach (Prunus persica)
EP0185254B1 (en) Process for prolonging the dormancy of plants or parts of plants
DE3021158A1 (en) PREPARATIONS FOR STIMULATING GROWTH OF GRASS ROOTS AND METHOD FOR THEIR USE
DE3117909A1 (en) METHOD FOR IMPROVING THE FRUIT BREAD BY LIGHTING TO INTERRUPT THE NIGHT
EP0007459A1 (en) Process for combating plant diseases
Williams Control of premature fruit drop in Macadamia integrifolia: effects of naphthalene acetic acid application, cincturing, and shoot-tip removal
Holt et al. Response of Sudangrass Hybrids to Cutting Practices 1
DE69914825T2 (en) Treatment of shoot tips (main shoots) of trees from the Picea and Abies families
DE19815916A1 (en) Pest control for plants
US1835888A (en) Method of stimulating vegetation
Graf Zur Biologie und Gradologie des Grauen Lärchenwicklers, Zeiraphera diniana Gn.(Lep., Tortricidae), im schweizerischen Mittelland 1: Teil 1 Biotop, Phänologie und Populationsbewegung
DE4103254C2 (en) Means to increase the stress tolerance of agricultural and forestry crops
AT383252B (en) Process for combating the growth of mistletoe on trees
AT396414B (en) METHOD FOR OBTAINING SEEDS OF HIGH VEGETABILITY FROM THE CONE CONE
AT212078B (en) Process for influencing the degree of hydration and the release of water in plants
DE934611C (en) Process for the treatment of seeds, seedlings and cultivated plants
DE2810527A1 (en) METHOD FOR SELECTIVE GROWTH REGULATION OF HIGH MEADOW FINGER (FESTUCA ARUNDINACEA)
DE696176C (en) Method of promoting root formation
DE1146693B (en) Process for converting biennial fruit trees, especially apple trees, into annual fruiting ones
DE1294734B (en) Means for regulating plant growth
DE3921569A1 (en) PROCESS FOR ROOTING OF STECKLINGEN

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR IT LI

17P Request for examination filed

Effective date: 19860715

17Q First examination report despatched

Effective date: 19900615

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR IT LI

REF Corresponds to:

Ref document number: 64063

Country of ref document: AT

Date of ref document: 19910615

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 3583123

Country of ref document: DE

Date of ref document: 19910711

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19921112

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19921113

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19921120

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19921126

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19931204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19931231

Ref country code: CH

Effective date: 19931231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST